What is the value of a 50 US Dollars bill 1950 D series?
In average condition, face value only. If only some traces of wear show, it might retail for up to $75.
Please check your bill again. "E" is the highest series letter for 1950 $20 bills. You're probably looking at the Federal Reserve District letter instead; the series letter (if any) is next to the date. When you've identified the series letter, check the question "What is the value of a 1950 [letter] US 20 dollar bill?" for more information.
There was never a 1950 G US $100 bill. The highest series letter, which appears by the date, was E. The "G" is almost certainly the letter code for the Chicago Federal Reserve District that distributed the bill; that's not the same as the series letter. Check to see what letter is next to the date. It could be blank or A to E. Then see the question "What is the value of a 1950…
"E" is the highest series letter used for the 1950 series of $10 bills. You're most likely looking at the Federal Reserve district letter instead; L would indicate that the bill was printed for and distributed by the San Francisco district. Please see the question "What is the value of a 1950 US 10 dollar bill?" for more information.
Despite its age these bills are not especially valuable. As of 09/2010 a circulated one might retail for $23-$25, while a nice uncirculated one might bring $35 or so. In 1950, several different series of 20 dollar bills were in circulation. A series B 20 dollar bill is worth around 30 to 50 dollars.
The only US $50 bill with an E series letter is 1950. There's more information at the question "What is the value of a 1950 E US 50 dollar bill?". If your bill has any other date, you may be looking at the Federal Reserve District letter. The series letter, if any, on US bills is next to the date. In that case, please check the date and post a new question.
It depends on how uneven the cut is. If the bill is slightly off-center it doesn't have any extra value. If the cut is so far off-center that part of another bill is visible it could be worth a couple of hundred dollars depending on condition, but it would have to be inspected in person by a currency dealer or appraiser who works with error bills. Also, there was never a "G" series letter on…
The J is not a series letter, it is the code for the issuing Federal Reserve district. The series letter (if any) is located next to the date. If there is no series letter, or A through D, your bill is worth face value to $22. A dealer will pay face only. If the series letter is E, it could be worth $40 to $60.